TB/T 3254-2019.Sanding device of roling stock.1范围TB/T 3254规定了机车车辆撒砂装置的分类与组成，技术要求,检验方法，检验规则,标志、包装、运输及...
YD/T 2787-2015.Function requirements of interconnection between mobile virtual network operator and mobile network operator.1范围YD/T 2787规定了我国移动转售企业在开展移...
YD/T 2789.1-2015.Technical requirements and testing methods for billingperformance of billing system of digital cellular mobile telecommunication network packet data service Part1: ...
YD/T 2789.2-2015.Technical requirements and testing methods for billingperformance of billing system of digital cellular mobile telecommunication network packet data service Part2: ...
YD/T 2736.2-2015.Test method for user equipment of 2GHz WCDMA digital cellular mobile communication network.1范围YD/T 2736.2规定了针对2GHz WCDMA数字蜂窝移动通信网引入...
YD/T 2734.1-2015.Test method for HSPA+ user equipment of 2GHz TD-SCDMA digital cellular mobile communication network Part 1:Basic operation,services and performance test.1范围YD/T...
TB/T 3204-2018.Technical specification of railway private emergency communication system.1范围TB/T 3204规定了铁路专用应急通信系统的系统构成,系统技术要求,应急...
TB/T 3199.1-2018.Insulators for overhead contact system of electrified railways-Part 1 :Long rod ceramic insulators.1范围TB/T 3199.1规定了工频单相交流25 kV电气化铁路接...
TB/T 3144-2019.Empty/ load auto-adjusting equipment of bsake system for railway vehicle.1范围TB/T 3144规定了铁路车辆制动系统用空重车自动调整装置的术语和定义...
TB/T 3143-2018.Tight-lock coupler and draft gear for rolling stock.1范围TB/T 3143规定了铁路机车车辆用密接式车钩缓冲装置的使用条件,分类与组成,技术要求...
